Do you like FAT mids and some extra high end sparkle? This is our ECC803S V1 Option Retube Kit for the Bad Cat Hot Cat 15 Heads and Combo Amps. It uses a Long plate ECC803S for V1 along with four ECC83S's with one being current balanced for the phase inverter and a GZ34 rectifier tube. The default power tubes are a matched pair of the JJ EL84's. With the Customize option you can configure this kit to use the JJ EL844's which will drop the power output a couple decibels (ideal for players wanting decreased headroom/output).